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Finding the Fourth Proportional to 550,151.70, 759,245.85 and 308,449.92

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Solution

The fourth proportional to 550,151.70, 759,245.85 and 308,449.92 is: 425,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,151.70 : 759,245.85 = 308,449.92 : x
  2. Step 2: Convert to fraction form
    550,151.70/759,245.85 = 308,449.92/x
  3. Step 3: Cross multiply
    550,151.70x = 759,245.85 × 308,449.92
  4. Step 4: Simplify right side
    550,151.70x = 234,189,321,692.83
  5. Step 5: Solve for x
    x = 234,189,321,692.83/550,151.70
  6. Step 6: Final answer
    x = 425,681.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.